When we send this error message, Ajax response handler in index.php uses the HTTP status code to check if there was an error and alerts user with the message. If content_txt POST variable is set, PHP code adds a new record and returns the result, if it is a delete request, it deletes selected record from the database.In case of errors, we will just output PHP header 500 errors like this : header('HTTP/1.1 500 Error Message!'). create database test Then, we will create a new table in database ‘test’. Since all these processing takes place on the server, we do not need any jQuery codes here.In response.php, the type of request is determined by the POST variables sent by index.php. Here is a step-by-step guide on creating a CRUD system using PHP & MySQL with PDO: First of all, we will create a new MySQL database. response.php connects to database, add/delete records and return success / error messages. Returning the Data The response.php returns results according to the different Ajax request users make. $("#LoadingImage").hide() //hide loading imageĮrror:function (xhr, ajaxOptions, thrownError)) Here's how we list the initial records from the database using PHP. $("#FormSubmit").show() //show submit button $("#contentText").val('') //empty text field on successful Url: "response.php", //Where to make Ajax callsĭataType:"text", // Data type, HTML, json etc. Var myData = 'content_txt='+ $("#contentText").val() //build a post data structure $("#LoadingImage").show() //show loading image $("#FormSubmit").hide() //hide submit button # send add record Ajax request to response.php #
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